USPTO Patents Application 09543831

III. CLAIM AMENDMENTS

1. (Previously Amended) A telephone handset having a front
surface with a display and a keypad, wherein said keypad
includes a group of keys for data entry and a key for navigating
a cursor in the display and selecting an item in dependence of
the position of the cursor,

said navigation and selection key positioned in the front
surface of the phone between the display and the group of
data entry keys,

said navigation and selection key includes a roller body which
is essentially cylindrical with a length and diameter of
substantially the same size as the width of the keys in
said group of keys for entering alphanumeric signs, and
extends partly through an opening in the front surface of
the phone, and has an axis of rotation perpendicular to the
longitudinal axis of the phone,

said roller body is fully rotatable and is allowed to adopt a
predetermined number of valid positions during a rotation
for moving the cursor, and can be depressed to request
performance of an action in dependence of the position of
the cursor.

2. (Previously Cancelled)

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3. (Previously Amended) A telephone handset according to claim
1, wherein the keys in said group of keys are arranged in three
columns each having four keys, and said navigation key is placed
as an extension of the central column.

4. (Previously Amended) A telephone handset according to claim
1, and furthermore comprising:

-a first detection means for detecting the rotation of the
roller and for providing a first control signal for the
controller,

-a second detection means for detecting the depression of the
roller and for providing a second control signal for the
controller, and

-said controller moving the cursor between items displayed in
the display in dependence on the first control signal and
selecting an item pointed out by the cursor in dependence
on the second control signal.

5. (Previously Amended) A telephone handset according to claim
1, wherein the length of said navigation key is of the order of
6-14 mm, and the maximum diameter of the roller body is of the
order of 6-12 mm.

6. (Previously Amended) A telephone handset according to claim
1, wherein the structure of the navigation key for providing
control signals in dependence on the operation thereof,
comprises:

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-a roller body acting as a navigation key;
-a carrier for carrying said roller body;
-a supporting means supporting said carrier;

-said carrier being hinged relative to the supporting means by
cooperating hinging parts;

-biasing means for urging the carrier and the supporting means
away from each other at a distance from said hinging parts;
and

-detection means for detecting a force counteracting the
biasing force provided by said biasing means and for
providing a second control signal in dependence thereon.

* 7. (Original) A telephone handset according to claims 6,
wherein the carrier furthermore carries and encoder means
aligned with the roller body for detecting the rotation of said
body and for providing a first control signal in dependence
thereon.

8-11. (Cancelled)

12. (Currently Amended) A navigation key otructurc according to
claim — Hr-? — A navigation key for providing control signals in
dependence on the operation thereof, comprising:

a roller body acting as a navigation key;

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a carrier for carrying said roller body, wherein the carrier
comprises a shaft part retained between two plate-shaped
end parts, said roller body is arranged rotatably on said
shaft part, and said end parts are furthermore adjoined by
at least one beam- shaped leg part extending along the shaft
part for providing a stiff structure for the carrier;

a supporting means supporting said carrier;

said carrier being hinged relative to the supporting means by
cooperating hinging parts;

biasing means for urging the carrier and the supporting means
away from each other at a distance from said hinging parts;
and

detection means for detecting a force counteracting the
biasing force provided by said biasing means and for
providing a second control signal in dependence thereon .

13 . (Cancelled)

14. (Currently Amended) A navigation key structure according to
claim ±^12, wherein the carrier comprises two leg parts in
parallel with the shaft part, and the hinge part of the carrier
extends outwardly from one of said leg parts.

15. (Original) A navigation key structure according to claims
12 , wherein the roller body is shaped as a barrel having a
through bore for pivotal reception of said shaft part.

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16. (Original) A navigation key structure according to claim
14, wherein the roller body is provided with a cam-shaped disc
member for cooperation with a spring member fixed to said shaft
part, thereby defining a number of discrete positions allowable
during the revolution of the roller body.

17. (Original) A navigation key structure according to claim

16, wherein the diameter of the through bore of the roller
member expands at one end of the member for providing an
internal chamber in the roller body containing said cam- shaped
disc member and said spring member.

18. (Original) A navigation key structure according to claim

17, wherein said cam-shaped disc member is received in the
through bore of the roller member and acts as end wall for said
chamber, said disc member being provided with a central opening
for the shaft part.

*

19. (Currently Amended) A navigation key structure according to
claim H12_, wherein the carrier furthermore carries an encoder
means aligned with the roller body for detecting the rotation of
said body and for providing a control signal in dependence
thereon.

20. (Original) A navigation key structure according to claim

18, wherein the outer surface of the disc-shaped member is
provided with a pattern readable by the encoder means.

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21. (Original) A navigation key structure according to claim
20, wherein the outer surface of the disc-shaped member is
provided with a pattern which is readable by the encoder means.

22-27. (Previously Cancelled)

28. (Previously Added) The telephone handset of claim 1 wherein
a position of the navigation and selection key is determined to
enable one handed operation of the phone.

29. (Previously Added) The telephone handset of claim 1 wherein
a position of the navigation and selection key is determined to
allow the user to hold the phone in one hand and manipulate the
navigation and selection key with the thumb of that hand.

30. (Previously Added) The telephone handset of claim 1 wherein
the navigation and selection key performs a swing movement
around a hinge axis when depressed to activate a microswitch.

31. (Previously Added) The telephone handset according to claim
1 wherein the roller body is adapted to have twelve positions
per revolution, each position being mechanically defined.

32-34. (Cancelled)

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